Shane Mosley hasn’t won a fight in nearly four years. But his now-former trainer believes Mosley can still win if, as expected, he comes back to face welterweight titleholder Paulie Malignaggi in 2013.

Naazim Richardson will not be in Mosley’s corner when Mosley challenges Malignaggi — Mosley instead has returned to having his father, Jack Mosley, as his trainer.

Nevertheless, Richardson tells BoxingScene.com that there is a difference between Mosley facing Malignaggi instead of the opponents he has lost to in recent years.